Low Pt Loading High Catalytic Performance of PtFeNi/Carbon Nanotubes Catalysts for CO Preferential Oxidation in Excess Hydrogen I: Promotion Effects of Fe and/or Ni
文献类型：期刊论文
| 作者 | Chen, Limin1,2; Ma, Ding2,3; Zhang, Zhen2; Guo, Yuanyuan1; Ye, Daiqi1; Huang, Bichun1 |
| 刊名 | catalysis letters
 |
| 出版日期 | 2012-08-01 |
| 卷号 | 142期号:8页码:975-983 |
| 关键词 | Low Pt loading Fe/Ni promoted Pt catalysts Carbon nanotubes CO preferential oxidation (PROX) |
| 英文摘要 | the commercial carbon nanotubes (cnts-o) and purified carbon nanotubes (cnts-p) have been utilized to prepare pt(feni)/cnts catalysts for co preferential oxidation (prox) in h-2 rich stream. the 3 wt%pt0.41 %fe 0.35 %ni/cnts-p catalyst after activation at 500 a degrees c in h-2 can almost completely remove co at 6 a degrees c in feed gas containing 1 % co, 0.5 % o-2 (volume ratio) and h-2 balance. cnts-o supported 3 wt% pt can also remove co almost completely at room temperature, after activation at 500 a degrees c in the feed gas. and this catalyst can keep high activity, high selectivity and high stability for prox of co at room temperature. these catalysts are the most effective catalysts for prox of co with much lower pt loading until so far. h-tpr, xrd, hrtem and reaction results indicate that the fe and/or ni precursors have been reduced to metallic state after activation in h-2 which can be oxidized to coordinatively unsaturated feox and/or niox active species after exposure to feed gas. xps data point out that over oxidation of fe and pt species will deactivate the catalysts seriously. the high catalytic performance is mainly due to the promotion effects of in situ formed coordinatively unsaturated feox and/or niox species and the unique properties of cnts. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, physical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | carbon nanotubes ; activated carbon ; selective oxidation ; h-2-rich stream ; rich stream ; mechanism ; platinum ; monoxide ; absence ; metals |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000307292800007 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://159.226.238.44/handle/321008/138030]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.S China Univ Technol, Guangdong Prov Key Lab Atmospher Environm & Pollu, Coll Environm Sci & Engn, Guangzhou 510006, Guangdong, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 3.Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Limin,Ma, Ding,Zhang, Zhen,et al. Low Pt Loading High Catalytic Performance of PtFeNi/Carbon Nanotubes Catalysts for CO Preferential Oxidation in Excess Hydrogen I: Promotion Effects of Fe and/or Ni[J]. catalysis letters,2012,142(8):975-983. |
| APA | Chen, Limin,Ma, Ding,Zhang, Zhen,Guo, Yuanyuan,Ye, Daiqi,&Huang, Bichun.(2012).Low Pt Loading High Catalytic Performance of PtFeNi/Carbon Nanotubes Catalysts for CO Preferential Oxidation in Excess Hydrogen I: Promotion Effects of Fe and/or Ni.catalysis letters,142(8),975-983. |
| MLA | Chen, Limin,et al."Low Pt Loading High Catalytic Performance of PtFeNi/Carbon Nanotubes Catalysts for CO Preferential Oxidation in Excess Hydrogen I: Promotion Effects of Fe and/or Ni".catalysis letters 142.8(2012):975-983. |
入库方式： OAI收割
来源：大连化学物理研究所
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